Questions have also been raised over the number of arrests for which Hynes has claimed responsibility, and the alleged intimidation of victims and family members who have reported abuse to secular authorities.
On Thursday, Hynes – whose jurisdiction includes the world's largest ultra-Orthodox community outside Israel – told the Guardian: "The Brooklyn DA has the most active investigation [and] prosecution of any Orthodox members in the country. In LA or any major centre of Orthodox communities, there are no prosecutions."
He went on to deny that he was giving special treatment to ultra-Orthodox offenders by not naming them, stating that it was necessary to protect victims in the close-knit Brooklyn community.
Influential leaders within the community are said to have told observing ultra-Orthodox Jews that they must obtain permission from a rabbi before reporting allegations of abuse to the police.
Requests for more information made by the Guardian, the Jewish Week, and the Jewish Forward newspaper under New York's freedom of information law have been turned down by the DA's office